Coal-beeaker



OFFICE.

WVM. DE HAVEN AND PHILIP UMHOLTZ, E MINERSVILLE, PENNSYLVANIA.

COAL-BREAKER.

Manner of Constructing Machines for the Breaking of Anthracite; and we do hereby declare that the following is a full and'4 exact description thereof.

IVe construct a cylinder of cast-iron, which is hollow, and is made to re- `volve4 on gudgeons by the application of any adequate power. On the periphery of this cylinder there are rows of teeth that project out therefrom, and said periphery is also perforated by a large number of holes of sufficient size t-o allow the broken coal to pass through them into its interior, whence it escapes at its lower side, and at its ends, which are o-pen,`with the exceptions of the space occupied by the arms to which its gudgeons are attached. Near to one side of this cylinder we place a stout plate of cast-iron, which has through its lower por- .tion rows of holes similar in size to those which pass through the cylinder, but inclining downward so as to facilitate the escape of the broken coal through them. The lower edge of this plate may stand at the distance of four, or five inches, more or less, from the cylinder; and from this lower edge teeth, similar to those on the cylinder, project out horizontally, toward said cylinder, these being so arranged as that the teeth on the cylinder may pass between them. This plate may stand vertically, or it may have an inclination outward should it be desired to increase the space which is first to receive the coal to be broken, and which constitutes what may be calle-d the hopper of the machine. To form this hopper the plate above named is made to extend up to some height above the top of the cylinder, and there are also corresponding end plates which rise to the same height.

In the accompanying drawings Figure l, is a perspective representation of the machine, with the-omission of one of the end plates, which is left off for the purpose of showing the cylinder the more perfectly. Fig. 2, is a vertical section of the machine through its middle, from front to back.

A, A, is the hollow cylinder, which may be turned by means of a wheel and pinion B, and C, or in any other convenient Way.

D, D, are teeth projecting out from said cylinder, and E, E, openings through it.

F is a cast-iron plate, extending the whole length of the cylinder, and rising above it, as represented, and G G are holes for the escape of the broken coal through them. H, is one of the teeth on the lower edge of the plate, and between which the teeth D, D, pass.

I, is one of the end plates, constituting a part of the hopper.

The manner in which this machine operates will be readily understood from the foregoing description of it. The unbroken coal is to be thrown into the space constituting the hopper, and the cylinder being turned in the direction indicated by the arrow, the coal will be broken by the action of the teeth D, and H, and will in part escape between said teeth, and in part through the openings in the cylinder and in the plate F.

Having thus fully described the manner in which we construct our machine for the breaking of coal, and shown the operation thereof; what we claim therein as new, and desire to secure by Letters Patent, is-

The manner in which we have arranged and combined the respective parts thereof, consisting of a single hollow cylinder, furnished with teeth, and having perforations through it, and of the plate on one side of said cylinder which also is perforated, and is furnished with a row of teeth on its lower edge; the 'whole arrangement and combination being substantially the same with that herein set forth.

WM. DE HAVEN. PHILIP UMHOLTZ.

"Witnesses:

J No. H. CLEMENT, CHARLES l/V.D. TUYLE. 

